D17 diesel
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=150124
Printed Date: 20 Jun 2025 at 11:28am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: D17 diesel
Posted By: Brent.eggers
Subject: D17 diesel
Date Posted: 04 May 2018 at 12:22pm
| So I drug home a d17 diesel yesterday haven't played with it much yet I doubt the generator works I would like to see if I can make it work if anyone can help. It is a series 2 by the way alluminum name on hoods. I'm in search for a goo grill. I also noticed I'm not impressed with the power steering on the old girl. The low range is growing kinda seriously but nutraceuticals & hi range sound just fine & quite any help or info on this would be great |
Replies:
Posted By: Tbone95
Date Posted: 04 May 2018 at 12:54pm
nutraceuticals??? Ya, I know, damn phone, but that's funny! Neutral I presume....
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Posted By: Brent.eggers
Date Posted: 04 May 2018 at 2:42pm
| Yes spell check got me |
Posted By: Brian Jasper co. Ia
Date Posted: 04 May 2018 at 4:05pm
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Generators are easy to diagnose. If it's not working here's how you figure out what's wrong. Your tractor was originally positive ground so we will assume the tractor is still positive ground. Take the belts off then disconnect both wires at the generator. If you have a power steering pump on the generator, pull it loose as well. Now run a jumper wire from the battery negative to the A terminal on the generator. A set of jumper cables works well for this. The generator should start spinning fast like a motor. While you have the generator motoring, ground the F terminal on the generator. It should slow down but continue to motor. If it doesn't motor, or arcs at the commutator bars it could be worn brushes or shorted armature. Brushes are easy, the armature is very expensive. If all was fine so far, now test the wires between the generator and regulator. Disconnect each wire one at a time and use them in a simple circuit with a headlight bulb for the load. Don't try to use an ohmmeter to verify your wires because 1 sliver of wire will show low resistance, but will not be able to carry the current needed. Bright bulb with each wire means they're capable of carrying the current needed. Now test the power wire for the system. It's connected to the BATT terminal on the regulator. Bright bulb is good. If everything checks out, check the regulator mounting points. The regulator needs a good ground through the mounting bracket. Buff off any rust and see if it works. If it still doesn't work, replace the regulator. B&B Steve on here knows where to get the best quality regulators these days. The online stuff is mostly cheap Chinese garbage.
------------- "Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford |
Posted By: Brian Jasper co. Ia
Date Posted: 04 May 2018 at 4:22pm
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I'll add this, if the armature in your generator is bad or the splines on the end for the P/S pump are bad, a generator for a 57 Chevy can be retrofitted. My generator armature died and I couldn't find a new one. They can be rewound, but it was about $500 to do it. I was given the 57 Chevy generator and it works. It's a little longer than the original unit, but the P/S pump fits the same, just had to slide the inlet hose back a little on the pump. With the extra length my guess is it has a little more capacity than the original. ------------- "Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford |
Posted By: Brent.eggers
Date Posted: 11 May 2018 at 2:47pm
| Took a few days but. I'm back & I tested the gen & she worked put a battery in right wired it & polarized my regulator she working like a champ charges great !!! Thanks Brian. |
Posted By: TimCNY
Date Posted: 11 May 2018 at 6:46pm
| Leave it under a bird nest to get the grill gooed. |